One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
What do we call a substance that dissolves in a given solvent?
What do we call a solution in which no more solute will dissolve?
What is the solvent in the handout’s salt comparisons?
At 20 °C, 204 g of sugar dissolves in 100 g of water. How much dissolves in 200 g of water?
For most solutes, what happens to solubility as temperature increases?
To compare two solutes fairly, which conditions should be stated?
What does solubility tell us?
At 20 °C, 32 g of copper sulfate dissolves in 100 g of water. How much dissolves in the same water at that temperature?
At 20 °C, 7 g of potassium chlorate dissolves in 100 g of water. How much can dissolve in 200 g of water?
Which substance from the handout dissolves in nail polish remover but not in water?
“Dissolving rate” means how fast a solute dissolves.
A saturated solution can always dissolve more of the same solute under the same conditions.
To make a fair comparison, we should use a known amount of solvent and state the temperature.
Water is the only solvent.
At 20 °C, 50 g of water can dissolve half as much sugar as 100 g of water.
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.

Pick a tile, answer, hit bonuses and steals.
Vertebrates
20 questions